US 12,451,613 B2
Reflex reflector and lamp device including the reflex reflector
Kentaro Mori, Tokyo (JP); and Masayuki Kanechika, Tokyo (JP)
Assigned to STANLEY ELECTRIC CO., LTD., Tokyo (JP)
Filed by STANLEY ELECTRIC CO., LTD., Tokyo (JP)
Filed on Jan. 23, 2025, as Appl. No. 19/035,488.
Claims priority of application No. 2024-009086 (JP), filed on Jan. 24, 2024.
Prior Publication US 2025/0239783 A1, Jul. 24, 2025
Int. Cl. B60Q 1/00 (2006.01); F21S 45/00 (2018.01); H01Q 1/32 (2006.01); H01Q 15/14 (2006.01)
CPC H01Q 15/14 (2013.01) [B60Q 1/0023 (2013.01); F21S 45/00 (2018.01); H01Q 1/3208 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A reflex reflector for use with a radar unit, the reflex reflector comprising:
a first resin layer and a second resin layer that are integrated together;
a retroreflective interface that is an interface between the first resin layer and the second resin layer, and a retroreflective uneven surface,
wherein a refractive index of the first resin layer is greater than a refractive index of the second resin layer; and
an islands-shaped metal layer that is provided on the retroreflective interface and capable of transmitting a radar wave from the radar unit,
wherein a dielectric constant difference between the first resin layer and the second resin layer is within 5%.